{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["process parameter", "process characterization", "machine or equipment", "material", "engineering feature", "application"], "input": "Besides , plasticity deterioration of the repaired tensile specimens is mainly attributed to the formation of columnar grain boundary α phases in the weld zone which are considered to be the earliest nucleation sites of microcracks and confirmed by in situ tensile test ."}
{"process parameter": [], "process characterization": [], "machine or equipment": ["tensile specimens"], "material": ["be"], "engineering feature": [], "application": []}